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Full text of "Holly_Service_Manual_Distributer_Models_1201_1209_1214_1215_1219_"

SERVICE MANUAL 




^ 



JANUARY 16, 1950 



DISTRIBUTOR MODELS 

1201, 1209, 1214, 1215 and 1219 






\ 




PRESSURE DISTRIBUTOR 



HOLLEY CARBURETOR COMPANY 

5930 VANCOUVER • • • DETRQIT 4, MICHIGAN, U. S. A. 



HCSM7 



J 



PRESSURE DISTRIBUTOR 
MANUAL 



TABLE OF CONTENTS 



INTRODUCTION 3 

DESCRIPTION o • 3 

OPERATION • 4 

OVERHAUL . 5-12 

DISASSEMBLY 5 " 7 

Removing Distributor from Engine 5 

Removal of Shaft and Cam Assembly 5 

Disassembly & Removal of Breaker Plate Ass'y 6 

Removal of Bushings 7 

REASSEMBLY 8 " 10 

Installation of New Bushings 

Sizing Bushings 

Assembly & Installation of Breaker Plate Ass'y 9 

Installation of Cam and Shaft Ass'y 10 

ADJUSTMENTS • • • • 11_12 

Adjusting Spark Advance . H 

SERVICE HINTS 12_13 

Adjustment of Breaker Point Gap 12 

Checking for Worn or Bent Shaft and Cam 

Assembly and Worn Bushings. . . . „ 

Installing Distributor in Engine 

Adjusting Timing 13 

Checking for Defective Diaphragm 13 




^£L£Z/~< 



PRESSURE DISTRIBUTOR MANUAL 








HOLLEY MODEL 1201 

PART NO. D-38060 

'49 & '50 FORD, MERCURY V-8 





HOLLEY MODEL 1209 
PART NO. D-38092 
'49 & '50 FORD SIX 



HOLLEY MODEL 1214 

PART NO. D-38223 

'50 LINCOLN 




HOLLEY MODEL 1215 

PART NO. D-38151 
'49-' 50 FORD SIX BUS 



HOLLEY MODEL 1219 

PART NO. D-38292 

'49-'50 FORD F-7 & F-8 TRUCKS 



Illustrated above are the five distributors covered in this manual 
(Applications listed are current as of January 16,1950.) 



- 2 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



INTRODUCTION 



I he Holley pressure distributor is the 
outgrowth of many years of research and 
experiment for a single ignition unit that 
provides the proper spark advance under 
all operating conditions of speed and load. 

The basic difference between the Holley 
pressure distributor and conventional dis- 
tributors lies in the method of controlling the 
degree of spark advance for the various en- 
gine operating conditions. Conventional dis- 
tributors use a centrifugal type of advance 



mechanism, either alone or in combination 
with a vacuum operated auxiliary advance 
mechanism which is piped to the carburetor. 
The pressure distributor combines the func- 
tions of the centrifugal advance mechanism 
and the vacuum advance mechanism in one 
diaphragm type controlling unit. This results 
in a considerable saving in parts, eliminates 
spark "fanning", and provides a positive con- 
trol over the degree of spark advance in ac- 
cordance with engine requirements. 



DESCRIPTION 



DIAPHRAGM 
ASSEMBLY 



The Holley pressure distributor consists 
of four basic units or assemblies: the dia- 
phragm assembly, the breaker plate assembly, 
the distributor shaft and cam assembly, and 
the distributor base. 
On governor equipped 
engines, the distributor 
base houses the gover- 
nor rotor unit. 

The diaphragm as- 
sembly is a factory 
sealed unit. No further 
disassembly should be 
attempted after it has 
been detached from the 
distributor. 

The breaker plate 
assembly has been de- 
signed with particular 
attention to ease of ad- 
justment and replace- 
ment of important parts . 
The condenser is easily 
accessible when the dis- 
tributor cap is removed. 
The breaker arm and 

bracket assembly has been designed as a 
complete factory assembled unit consisting 
of the breaker arm and the stationary breaker 
point, including the breaker arm pivot pin. 
Replacement of this complete assembly in- 




SHAFT 

AND 

CAM 
ASSEMBLY 



DISTRIBUTOR BASE 



sures accurate alignment of the breaker points 
and includes a new breaker arm pivot pin 
which is not readily replaceable on conven- 
tional distributors. A unique means has also 

been provided for ad-* 
justing the breaker 
points. A notch in the 
adjustable breaker point 
bracket corresponds 
with a similar notch in 
a hole in the breaker 
plate in such a way that 
the blade of a screw- 
driver will fit in these 
two notches and act as 
a lever. Thus, the sta- 
tionary breaker point 
may be precisely moved 
with one hand while the 
clamping screw is loos- 
ened and tightened with 
the other hand. 

A large size oil 
retaining type bushing 
supports the breaker 
plate assembly and the 
distributor shaft, in- 
suring perfect concentricity and alignment 
between the cam and the breaker arm. With 
this type bushing, long service life with a 
minimum of wear may be expected. 



^_ 




PRESSURE DISTRIBUTOR MANUAL 



OPERATION 



ADJUSTABLE 

BREAKER PLATE 
SPRING POST 



DIAPHRAGM 

SPRING 
(SECONDARY) 

ADJUSTABLE 
BREAKER PLATE 
SPRING POST 

DIAPHRAGM 
ROD 



DIAPHRAGM 

SPRING 
(PRIMARY) 



PRIMARY 
TERMINAL 




VENTURI 

SUCTION 

HOLE 



THROTTLE-^ 
HOLE 



CONDENSER 



DIAGRAMMATIC ILLUSTRATION OF PRESSURE DISTRIBUTOR 



Fig. 1 



The two pressure distributor vacuum 
holes (part throttle hole and venturi suction 
hole) in the carburetor involve no additional 
moving parts and ordinarily function without 
attention for the life of the carburetor. 

The part throttle hole is located a precise 
distance above the throttle plate. During 
part throttle operation, when the airflow 
through the carburetor is small, the vacuum 
at the part throttle hole actuates the diaphragm. 
As the throttle is opened and more air flows 
through the carburetor, the vacuum at the 
venturi suction hole, located at the throat of 
the main venturi, becomes greater than the 
vacuum at the part throttle hole. Therefore, 
the venturi suction hole provides the actuating 
vacuum for the diaphragm during wide open 



throttle operation. 

Since the two pressure distributor vacuum 
holes are interconnected, the total pressure 
across the two holes indicates at all times 
the operation of the engine. The total pressure 
is piped to the diaphragm which is connected 
to the breaker plate and controls the degree 
of spark advance strictly in accordance with 
engine requirements. 

Two closely calibrated diaphragm springs 
are hooked between adjustable breaker plate 
spring posts and stationary spring posts 
mounted on the distributor housing. The 
tension on the diaphragm springs holds the 
breaker plate in the full retard position when 
there is no vacuum applied to the diaphragm. 



4 - 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



OVERHAUL 



DISASSEMBLY 

Before removing the distributor from the 
engine, unsnap the two bail clips and remove 
the cap. Scribe a mark on the distributor 
housing to indicate the position of the rotor 
for reference in reinstalling the distributor 
on the engine. 

NOTE: Special tools referred to in the fol- 
lowing sections may be procured from: 



Manzel, Inc. 
315 Babcock St. 
Buffalo, N.Y. 



K. R. Wilson 
215 Main St. 
Buffalo, N.Y. 



REMOVING DISTRIBUTOR FROM ENGINE 




Fig. 2 
Models 1201, 1209, and 1214 

1. Disconnect the primary wire and vacuum 
line (Fig. 2). Loosen the distributor clamp 
lock screw (Model 1201) or remove the hold 
down bolt (Model 1209 and 1214). 

2. Lift the distributor from the engine. 

Models 1215 and 1219 
Governor Equipped Distributors 

1. Disconnect the primary wire and vacuum 
line. Remove the adjusting clamp screw, nut, 
and V -clamps (Fig. 3). 



2. Lift the distributor housing from the 
distributor base which contains the governor 
valve. 




V-CLAM 



Fig. 3 
REMOVAL OF SHAFT & CAM ASSEMBLY 




I2I3I-N 
DISTRIBUTOR DRIVE GEAR 
and COLLAR LOCK 
PIN REMOVER. 



Pp 8 ^ 




Fig. 4 



Model 1201 



1. File off the drive gear rivet head and 
drive out the rivet. Use of a Distributor 
Drive Gear and Collar Lock Pin Remover 
(Tool No. 12131-N) is recommended (Fig. 4). 



_^ 




PRESSURE DISTRIBUTOR MANUAL 



2. Remove the drive gear and thrust washer 
from the distributor shaft. Use of a Distrib- 
utor Drive Gear Remover (Tool No. 12390-N) 
is recommended (Fig. 5). The shaft and cam 
assembly is now free to be removed. 




r 



2390-N 
DISTRIBUTOR DRIVE 
GEAR REMOVER 



DISTRIBUTOR 
DRIVE GEAR 



THRUST 
WASHER 




Fig. 5 



Models 1209 and 1214 



1. File off the distributor shaft collar rivet 
head and drive out the rivet. Use of a Dis- 
tributor Drive Gear and Collar Lock Pin 
Remover (Tool No. 12131-N) is recommended. 

2. Remove the distributor shaft collar and 
slide the shaft and cam assembly out of the 
housing. 



Models 1215 and 1219 



1. Remove the screw, washer, and drive 
plate from the underside of the distributor 
housing (Fig. 6), then pull out the shaft and 
cam assembly. 




SCREW 



Fig. 6 

DISASSEMBLY AND REMOVAL OF 
THE BREAKER PLATE ASSEMBLY 



RETAINER 



PRIMARY 
TERI 




PRIMARY 



WEAKER ARM 

AND 

BRACKET ASSEMBLY 



CONDENSER LEAD 



RETAINER 



Fig. 7 



All Models 



1. Remove the two screws and lockwashers 
holding the breaker arm and bracket assembly 
and the ground wire to the breaker plate. 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



2. Lift the breaker arm and bracket assembly 
off the breaker plate and remove the primary 
lead and condenser lead to the breaker arm 
and bracket assembly. Replace the nut and 
lockwasher on the primary lead and condenser 
lead post to prevent their loss. 

3. Remove the condenser bracket screw and 
lockwasher and condenser. 

4. Remove the diaphragm rod retainer and 
push the rod end out of the hole in the breaker 
plate. 

5. Remove the two diaphragm screws and 
lockwasher s and slide the diaphragm unit off 
the distributor housing. 

CAUTION: Use care in removing the dia- 
phragm to prevent the diaphragm rod from 
catching on the interior of the distributor. 
This may damage or tear the neoprene dia- 
phragm, requiring a replacement of the entire 
diaphragm assembly. 

6. Remove the primary and secondary dia- 
phragm springs by first turning the breaker 
plate spring posts to a position nearest the 
stationary posts to release the tension on the 
springs (tag each spring to identify the post 
from which it was removed). Use of a Dis- 
tributor Adjusting Wrench (Tool No. 12150-N) 
is recommended (see Fig. 1 5 on Page 10). 

CAUTION: Do not damage, bend, stretch or 
otherwise distort the primary and secondary 
diaphragm springs during disassembly and 
installation or difficulty will be encountered 
in obtaining the correct spark advance. 

7. Remove the breaker plate retainer and lift 
the breaker plate off the base bushing in the 
distributor housing. 

8. Disconnect and remove the ground wire 
attached to the interior of the distributor 
housing. 

9. Disconnect the primary wire by removing 
the nut and washer from the terminal and 
removing the terminal from the distributor 
housing. 



NOTE: Do not lose the flat insulator located 
between the inside of the distributor housing 
and the primary lead. 

REMOVAL OF BUSHINGS 



12132- N- 1 
DISTRIBUTOR SHAFT 
BUSHING REMOVER 




Fig. 8 

Models 1201, 1209, and 1214 

The upper and lower base bushings may- 
be removed from these distributors by driving 
them out with a Distributor Shaft Bushing 
Remover (Tool No. 12132-N-l) and a Distrib- 
utor Body Holding Block (Tool No. 12132-N-2). 

Models 1215 and 1219 

These distributors have only one base 
bushing in the distributor housing and it is 
removed the same way. 




PRESSURE DISTRIBUTOR MANUAL 



REASSEMBLY 

Installation of New Bushings 

The oilite bushings of the pressure dis- 
tributor must be pressed into the housing. 
If an arbor press is not available, use of a 
Distributor Shaft Bushing Press (Tool No. 
12132-P) and Spacers is recommended. Use 
only new bushings in reassembly . 

NOTE: Check distributor shaft for excessive 
wear in accordance with latest distributor 
specifications. 



Model 1201 

1. Place on the shaft of the Distributor Shaft 
Bushing Press (Tool No. 12132-P) the "B" 
spacer, a new lower base bushing, the dis- 
tributor housing and the 44 A" spacer in that 
order. Turn the 44 T" wrench down until the 
bushing is pressed into the distributor base 
and the base seats firmly against the 44 B" 
spacer (Fig. 9). 

NOTE: The 44 A" spacer must be placed so 
that the end having the projecting guide will 
fit into the housing in the position normally 
occupied by the upper base bushing. This 
serves as an aligning guide for proper lower 
base bushing installa- 
tion. 



2. Remove the 44 T" 
wrench and "A M spac- 
er. Then place the 
upper bushing, with the 
snap ring end up, on 
the distributor base. 
Place the 44 A" spacer 
over the bushing, (re- 
verse position from the 
previous operation) 
(Fig. 10) and turn the 
4 4 T ' ' wrench down until 
the 44 A" spacer seats 
firmly against the dis- 
tributor base, thus 
completing the instal- 
lation of the new upper 
base bushing. 




•A" SPACER 



DISTRIBUTOR 

SHAFT 

BUSHING 

PRESS 




NEW 

UPPER BASE 

BUSHING 



Fig. 10 



Fig. 9 



Models 1209 and 1214 



1. Place on the shaft of the Distributor Shaft 
Bushing Press (Tool No. 12132-P) the "B" 
spacer, 44 C" spacer, a new lower base bush- 
ing, the distributor base and the 44 A" spacer 
with the projecting guide fitting into the dis- 
tributor base. 

2. Turn the * 4 T" wrench down until the dis- 
tributor base seats firmly against the 44 C" 
spacer. This presses the lower base bushing 
in its proper position. 

3. To install the upper base bushing, remove 
the "T" wrench and the 44 A" spacer. Place 
the upper base bushing (snap ring end up) on 
the shaft and place the 44 A" spacer over the 
bushing (Fig. 10). Turn the 44 T" wrench down 
until the 44 A" spacer seats firmly against the 
distributor base. 



- 8 - 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



Models 1215 and 1219 



On governor equipped distributors the 
distributor housing requires only one bushing. 

1. To install the new bushing, place on the 
shaft of the Distributor Shaft Bushing Press 
(Tool No. 12132-P) the "B" spacer, "C" 
spacer, t4 D" spacer, the distributor housing, 
the bushing (snap ring end up) and the 44 A" 
spacer over the bushing. 

2. Turn the 44 T" wrench down until the "A" 
spacer seats firmly against the distributor 
housing, thus pressing bushing in its proper 
position. 



SIZING BUSHINGS 



12132 -a 

■ DISTRIBUTOR DRIVE 

SHAFT BUSHING 

BURNISHER 







Fig. 11 



All Models 



ASSEMBLY AND INSTALLATION 
OF BREAKER PLATE ASSEMBLY 

All Models 

1. Install ground wire, primary wire and 
primary terminal housing (Fig. 12). 

2. Install the two diaphragm springs on the 
breaker plate posts. The primary (light) 
spring goes on the post farthest from the 
diaphragm, and the secondary (heavy) spring 
goes on the post nearest the diaphragm. 
Place the breaker plate in position in the 
housing and secure the plate with the snap 
ring retainer. 



DIAPHRAGM 
SPRINGS 



1 . Size the bushings with a Distributor Drive 
Shaft Bushing Burnisher (Tool No. 12132-Q) 
(Fig. 11). 

CAUTION: These bushings are made of pow- 
dered bronze and should never be reamed. 




DISTRIBUTOR 
BODY 

"BBS? 



Fig. 12 

NOTE: Check to make sure that the breaker 
plate is perfectly free on the bushing. 

3. Place the condenser lead, primary lead, 
lockwasher and nut on the primary terminal 
of the breaker arm and bracket assembly and 
tighten the nut securely. 

4. Install the condenser and condenser 
holding screw on the breaker plate and tight- 
en the nut securely. 



- 9 



W0 — 



PRESSURE DISTRIBUTOR MANUAL 



5. Place the breaker arm and bracket as- 
sembly in position on the breaker plate, being 
sure that the pivot pin goes into the pivot hole 
in the breaker plate. Assemble the ground 
wire and screw at the adjustment end of the 
breaker arm and bracket assembly and the 
screw and lockwasher at the pivot end of the 
breaker arm and bracket assembly. 

6. Install the diaphragm assembly on the 
distributor housing with the two diaphragm 
screws and lockwasher s. 

7. Attach the two diaphragm springs to the 
stationary base posts. Insert the diaphragm 
rod end in the breaker plate and secure it 
with the retainer. 



INSTALLATION OF CAM & SHAFT ASS'Y 

Model 1201 

1. Place the shaft and cam assembly in the 
distributor and place the thrust washer on 
the end of the shaft. 



(b) Place the distributor drive gear on 
the end of the shaft, aligning the mark 
on the gear with the mark on the end 
of the shaft. 

(c) Hold another block of wood evenly 
over the gear and drive the gear on 
the shaft with a mallet (Fig. 13). 

3. Place the distributor on the Distributor 
Drive Gear and Collar Lock Pin Remover 
(Tool No. 12 131 -N). If the holes in the gear 
and shaft do not line up, a drift punch may be 
used to align them. Install the drive gear 
rivet and peen the end of the rivet securely. 

NOTE: Be sure there is proper end play 
(.002"-. 005") between the drive gear and 
thrust washer. If the distributor shaft has 
been replaced with a new one, it will be nec- 
essary to drill the new shaft for the rivet 
Use a 1/8" drill, making sure the shaft and 
gear marks will be in alignment. Be sure 
the end play is properly set (.002--. 005") 
before drilling. 



A. ALIGNING 



MARKS 




END PLAY 
.002"-005' 



Fig. 13 

2. The use of an arbor press is recommended 
to press the distributor drive gear on the shaft, 
but if none is available the following procedure 
should be followed: 

(a) Invert the distributor and brace the 
rotor end of the shaft on a block of 
wood. 



Models 1209 and 1214 



1. Install the shaft and cam assembly in the 
distributor; place the shaft collar on the shaft 
and secure it with a rivet. Use of Distributor 
Drive Gear and Collar Lock Pin Remover 
(Tool No. 12131-N) is recommended. 

NOTE: Be sure there is proper end play 
(.002--. 005") between the drive gear and 
thrust washer. If the distributor shaft has 
been replaced with a new one, it will be 
necessary to drill the new shaft for the rivet 
Use a 1/8" drill, making sure the end play 
is properly set (.002--.005") before drilling 



Models 1215 and 1219 



1. Place the shaft and cam assembly in the 
distributor and assemble the drive plate to 
the bottom of the shaft. Then secure the 
plate with the drive plate screw and lock- 
washer (Fig. 6). 



10 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



ADJUSTMENTS 



Adjusting Spark Advance 



1. Mount the pressure distributor on a dis- 
tributor stroboscope and adjust the breaker 
point gap to the proper specifications. 

NOTE: Breaker point gap is checked with 
cam set so that the breaker arm rubbing 
block rests on the highest point of the cam 
lobe. 

2. Check the breaker arm spring tension 
with a spring scale. It should be 17-20 ozs. 
(Fig. 14). If adjustment of spring tension is 
necessary, loosen the first breaker arm 
spring stud nut which secures the condenser 
wire and primary wire. Loosen the breaker 
arm spring stud nut to allow the spring to 
ride back and forth on the breaker arm post 
through the adjustment slot in the spring. 
The tension can then be increased by tighten- 
ing the spring and decreased by loosening 
the spring. When proper tension is obtained, 
tighten the two breaker arm spring stud nuts. 

3. Set distributor speed at 200 rpm. Holding 
the breaker plate in the full retard position, 
set the spark at the zero point on the degree 
scale. Tighten down the distributor holding 
clamp . 



BREAKER ARM 
SPRING STUD MUT 





Fig. 14 



Fig. 15 



4. Release the tension on the primary and 
secondary diaphragm springs by turning the 
breaker plate spring posts to the position 
nearest the stationary base posts (Fig. 15). 

NOTE: When the breaker plate is fully re- 
tarded, be sure the secondary diaphragm 
spring (heavy) is free. 

5. First adjust the primary spring to the 
proper specifications by setting the distrib- 
utor speed as indicated for primary spring 
adjustment and applying the required vacuum. 
Then turn the adjustable diaphragm spring 

post until the spark is properly advanced. 

The Distributor Adjusting Wrench (Tool No. 

12150-N) is recommended for this operation. 

6. Adjust the secondary diaphragm spring 
the same way using the proper specifications 
for secondary spring adjustment. 



- 11 - 




PRESSURE DISTRIBUTOR MANUAL 



^^ 



These adjustments provide for an initial 
setting of both diaphragm springs. These 
settings should be checked by operating the 
distributor at various rpm throughout the 
speed range included in the distributor spark 
advance curve. Apply the required vacuum 
for the distributor speed and check for spec- 
ified spark advance. 



If the spark advance does not come up to 
specifications in the lower operating range, 
the light or primary diaphragm spring may 
be faulty and should be replaced. 

If the spark advance does not come up to 
specifications in the higher operating range, 
the heavy or secondary diaphragm spring 
may be faulty and should be replaced. 



SERVICE HINTS 



Adjustment of Breaker Point Gap 

1. Remove the distributor cap and rotor. 

2. Replace the breaker arm and bracket 
assembly if the contact are pitted, oxidized 
or oily and dirty. (A white, frosted appear- 
ance of the points shows that they are in good 
condition.) 

NOTE: If a paper part number tag is stuck 
to the bottom of the new breaker arm and 
bracket assembly, it must be removed before 
installing the assembly. 



J2I50-N 
DISTRIBUTOR 
ADJUSTING WRENCH 




Fig. 16 

3. If the assembly has been replaced or 
needs adjustment, crank the engine until the 
rubbing block is on top of a cam lobe. 



4. Loosen the breaker arm and bracket 
assembly screws and insert a screw driver 
blade or the adjusting blade of Tool No. 
12150-N in the adjusting slots and turn the 
blade to get the correct gap (Fig. 16). Then, 
tighten the breaker arm and bracket assembly 
screws. 

NOTE: Loosen the screws only slightly before 
adjusting. They should still provide enough 
tension on the breaker arm and bracket 
assembly so that the assembly will not be 
moved from the proper setting when tighten- 
ing the screws. 

CAUTION: Use care not to bend the breaker 
arm when loosening and tightening the breaker 
arm and bracket assembly screws. 

Checking For Worn Or Bent 
Shaft And Cam And Worn Bushings 

1. Mount the pressure distributor on a dis- 
tributor stroboscope. Set distributor speed 
at 200 rpm and note whether the arrow flashes 
at exactly 45° intervals on the degree scale 
for 8 cylinder distributors and 60° intervals 
for 6 cylinder distributors. A variation of 
more than 1° indicates a worn cam or bent 
shaft . 

2. Set distributor speed at 2000 rpm. Again 
note whether the arrow flashes at exactly 
45° intervals on the degree scale for 8 cyl- 
inder distributors or 60° intervals for 6 
cylinder distributors. A variation of more 
than 1° indicates a worn shaft or worn bush- 
ings. 



- 12 



HOLLEY CARBURETOR COMPANY 



DETROIT, MICHIGAN 



INSTALLING DISTRIBUTOR IN ENGINE 



CAUTION: Engine must not be rotated from 
the position it was in when the distributor 
was removed. 

Models 1201, 1209, and 1214 



1. Turn rotor until it is aligned with the 
scribe mark on the housing (Fig. 2). 

NOTE: On model 1201 only, set rotor about 
30° (approximately 1 inch on the rim of the 
housing) from the scribe mark in a counter- 
clockwise direction. This allows for the 
rotation caused when the helical distributor 
drive gear slides in place. 

2. Place the distributor in the correct posi- 
tion in the engine and check to be sure that 
the rotor and scribe mark are still aligned. 
If not, pull distributor out only enough to 
rotate the rotor, make necessary corrections, 
and slide distributor back in place. 

3. Install the distributor clamp and lock 
screw (model 1201) or hold down bolt (model 
120 9 and 1214) snugly but do not tighten. 
Install the primary wire on the terminal. 
Connect the vacuum line to the diaphragm 
but do not tighten the fitting until the timing 
has been set. 



ADJUSTING TIMING 
All Models 

1. Install the distributor cap and snap the 
two bail clips in place, securing the cap. 

CAUTION: Be sure the distributor cap is 
properly installed with all mating surfaces 
flush, not tilted or tipped. Improper instal- 
lation of the cap may result in a broken rotor 
when attempting to start engine. 

2. Connect timing light to #1 or #6 cylinder, 
start engine and set timing according to the 
vehicle manufacturer's latest specifications. 
Turn distributor housing counter-clockwise 
to advance the spark and clockwise to retard 
the spark. 

3. When timing is properly set, tighten the 
distributor clamp lock screw (model 1201), 
hold down bolt (models 1209 and 1214), or 
adjusting clamp screw (models 1215 and 1219). 
Tighten the vacuum line fitting to the dia- 
phragm. 

4. Recheck timing with the timing light to 
insure that the setting has not been changed. 

CHECKING FOR DEFECTIVE DIAPHRAGM 
All Models 



Models 1215 and 1219 



1. Place the distributor housing on the dis- 
tributor base which contains the governor 
valve. Turn the rotor until the notch in the 
distributor drive plate (Fig. 6) engages the 
pin on the governor valve. 

2. Install the V-clamps (Fig. 3). Install the 
adjusting clamp screw snugly but do not tighten. 

3. Rotate the distributor housing until the 
scribe mark is lined up with the rotor. Install 
the primary wire and connect the vacuum line 
to the diaphragm but do not tighten the fitting 
until the timing has been set. 



The diaphragm of a properly timed dis- 
tributor may be checked without removing the 
distributor from the engine. 

1. Check the. condition of the vacuum line 
from the carburetor to the diaphragm. Be 
sure the fittings at both ends of the vacuum 
line are tight. 

2. Connect the timing light to the #1 or #6 
cylinder, and start the engine. At idle, the 
light should illuminate the mark at the pointer. 

3. Slowly accelerate the engine to about 
2000 rpm. If the mark stays in place, the 
diaphragm is defective and the entire dia- 
phragm assembly should be replaced. 



13